Master the latest industry standards and procedures with longtime market leader ELECTRICAL WIRING RESIDENTIAL, Twentieth Edition. In addition to comprehensive, authoritative coverage of the 2020 National Electrical Code (NEC), this trusted text will give you a thorough grounding in essential electrical theory and applications. Drawing on decades of industry and classroom experience, the authors guide you step-by-step through the critical tasks and responsibilities you can expect as a professional electrician in both new construction and existing homes. Extremely reader-friendly, the text offers detailed explanations without being overly technical, and content clearly relates the NEC to real-world installation processes used by today's professionals. Vivid Illustrations coordinate with the latest NEC regulations to provide further clarity, and foldout plans at the back of the text provide hands-on practice applying code requirements to prepare you for career success.